From 29cc9eda2021a87396ef31a6fc81daff6fd1be7a Mon Sep 17 00:00:00 2001 From: Myles Watson Date: Thu, 2 Jul 2009 18:56:24 +0000 Subject: Move the v3 resource allocator to v2. Major changes: 1. Separate resource allocation into: A. Read Resources B. Avoid fixed resources (constrain limits) C. Allocate resources D. Set resources Usage notes: Resources which have IORESOURCE_FIXED set in the flags constrain the placement of other resources. All fixed resources will end up outside (above or below) the allocated resources. Domains usually start with base = 0 and limit = 2^address_bits - 1. I've added an IOAPIC to all platforms so that the old limit of 0xfec00000 is still there for resources. Some platforms may want to change that, but I didn't want to break anyone's board. Resources are allocated in a single block for memory and another for I/O. Currently the resource allocator doesn't support holes. Signed-off-by: Myles Watson Acked-by: Ronald G. Minnich Acked-by: Patrick Georgi git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4394 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/southbridge/via/vt8231/vt8231_lpc.c | 20 +++++++++++++++++++- src/southbridge/via/vt8235/vt8235_lpc.c | 17 ++++++++++++----- 2 files changed, 31 insertions(+), 6 deletions(-) (limited to 'src/southbridge/via') diff --git a/src/southbridge/via/vt8231/vt8231_lpc.c b/src/southbridge/via/vt8231/vt8231_lpc.c index 4b906359b0..fb2f29be61 100644 --- a/src/southbridge/via/vt8231/vt8231_lpc.c +++ b/src/southbridge/via/vt8231/vt8231_lpc.c @@ -131,6 +131,24 @@ static void vt8231_init(struct device *dev) rtc_init(0); } +void vt8231_read_resources(device_t dev) +{ + struct resource *res; + + pci_dev_read_resources(dev); + + res = new_resource(dev, 1); + res->base = 0x0UL; + res->size = 0x400UL; + res->limit = 0xffffUL; + res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; + + res = new_resource(dev, 3); /* IOAPIC */ + res->base = 0xfec00000; + res->size = 0x00001000; + res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; +} + static void southbridge_init(struct device *dev) { vt8231_init(dev); @@ -138,7 +156,7 @@ static void southbridge_init(struct device *dev) } static struct device_operations vt8231_lpc_ops = { - .read_resources = pci_dev_read_resources, + .read_resources = vt8231_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = &southbridge_init, diff --git a/src/southbridge/via/vt8235/vt8235_lpc.c b/src/southbridge/via/vt8235/vt8235_lpc.c index 521271d1a8..67f602b9b4 100644 --- a/src/southbridge/via/vt8235/vt8235_lpc.c +++ b/src/southbridge/via/vt8235/vt8235_lpc.c @@ -219,15 +219,22 @@ static void vt8235_init(struct device *dev) device has a resource to set - so set a dummy one */ void vt8235_read_resources(device_t dev) { + struct resource *res; - struct resource *resource; pci_dev_read_resources(dev); - resource = new_resource(dev, 1); - resource->flags |= IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_IO | IORESOURCE_STORED; - resource->size = 2; - resource->base = 0x2e; + res = new_resource(dev, 1); + res->base = 0x0UL; + res->size = 0x400UL; + res->limit = 0xffffUL; + res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; + + res = new_resource(dev, 3); /* IOAPIC */ + res->base = 0xfec00000; + res->size = 0x00001000; + res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; } + void vt8235_set_resources(device_t dev) { struct resource *resource; -- cgit v1.2.3